Hand-operated pump.



No. 805,206. PATBNTED NOV. 2l, 1905. W. H. JORDAN.

HAND OPERATED PUMP.

APPLIUATION FILED mmm?, 1905.

W/mfssfs: /NVENTUH ATTORI/E YS UNITED STATES PATENT OFFIOE.

HAND-OPERATED PUMP.

Specification of Letters Patent.

Patented Nov. 21, 1905.

Application led March 29,1905. Serial No. 252,681.

T0 all whom, t may concern,.-

Beit known that I, WILLIAM H. JORDAN, a citizen of the United States, and a resident of Hays, in the county of Ellis and State of Kansas, have invented a new and Improved Hand-Operated Pump, of which the following is a full, clear, and exact description.

The object of the invention is to provide novel features of construction for a hand-operated pump which adapt it for very convenient and effective service as an instrument for the abstraction of pus or extravasated blood from a wound, boil, or ulcer on the human body.

The invention consists in the novel construction and combination of parts, as is hereinafter described, and defined in the appended claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in the views shown.

Figure 1 is a sectional side view of the pump, taken substantially on the line 1 1 in Fig. 2; and Fig. 2 is a transverse sectional view substantially on the line 2 2 in Fig. 1.

The pump cylinder or barrel 5, of tubular form, is afforded a suitable length and diameter for convenient use and effective service, one end being furnished with a closing-cap 5a. Upon the opposite end of the pump-barrel 5 is mounted a valve-case 6, the latter having a rounded periphery and a central bore a, that is diametrically enlarged at and near one end and internally threaded therein for a screwed engagement with the threaded end of the pump-barrel. The contour of the valve-case 6 is preferably bulbous, and on the end opposite from that wherein the barrel 5 is screwed a nipple 6L is centrally formed. The bore a at a proper distance from the adjacent end of the barrel 5 terminates in a fiat wall a and thence is extended as a passage a2 of reduced diameter through the projected nipple 6a.

An end wall b is formed or secured upon the extremity of the pump-barrel 5, that occupies the threaded portion of the bore a,

and this wall is centrally perforated, as shown at b.

A circular valve-block 7 is formed on one end of a longitudinally-lluted' stem 7 a, the stem being loosely inserted in the passage 0,2, the valve-block being slidable in the bore a, the latter constituting a valve-chamber.

Between the valve-block 7 and the end wall b a coiled spring 8 is placed, the expansion of which normally holds the valve-block seated on the lat wall c, which serves as a valve-seat.

Apassage c extends laterally from the valvechamber a and from the outer end thereof is counterbored to produce a valve-chamber c, wherein a check-valve 9 is held to reciprocate by the loose insertion of a iluted stem 9*L thereon into the passage c. The check-valve 9 is pressed by a spring 10, so as to hold it normally engaged with its seat, closing the passage c, and, as shown, said spring has contact at one end with an axially-perforated plug l11, that is screwed into the valve-chamer c A piston consisting of two gum or leather cups 12, held between two washers 12a, is mounted and secured upon one end of a piston-rod'13. The piston fits neatly in the tubularbarrel 5, and the rod 1 3 projects through a central perforation in the cap 5a, a handle 13a of any preferred form being secured on the outer end of the said rod to adapt it for reciprocation manually.

Upon the nipple 6L one end portion of a suction-cu 14 is mounted. Said cup,which is preferabljy formed of soft rubber, may have the free end turned laterally, as shown at 14a, and flared near the edge, thus adapting this open end to be conveniently applied over the inflamed protuberance that a boil or carbuncle generally assumes.

It is to be understood that for general service of the character specified several different forms of the suction-cup may be provided and exchanged to enable a proper engagement of the same with a boil, ulcer, or wound, the location of the latter determining the most available shape and trend of the nozzle end ofthe cup from the tubulate body of the same.

A passage d of small diameter is formed in the valve-case 6, extending from the passage @2 through the periphery of the case, and in a recess d', that is formed in the exterior of the case around the outer end of the passage d, a sealing-valve d2 is pivoted, the valve normally seating over the passage. On the valve d2 a handle d3 is formed or secured, that projects laterally therefrom, and, as shown in Fig. 1, the relative arrangement of the valve adapts a depression of the free end of the handle d3 to raise the valve and open the passage cl.

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In use it will be seen that the open end of the suction-cup 14 is to be placed over a boil or the like and held in position. The handle 13EL is now drawn slowly outward, which will draw the air forward in the interior of the pump-barrel 5 and unseat the valve 7, a return stroke of the piston in the barrel 5 closing the valve 7 and opening the check-valve 9, thus effecting a discharge of air from the pump -barrel and valve chamber a. second outward movement of the handle 13lL repeats the exhausting action just described and produces a partial vacuum in the suction-cup 14, which will cause a flow of pus from the diseased tissue into the valve-chamber a, the inward movement of the plunger now closing the valve 7 and opening the check-valve 9, simultaneously effecting a discharge of the pus from the check-valve chamber c in an obvious manner. When the liquid discharge from the inflamed tumor has been withdrawn, thesuction-cup 14 may be released for easy removal by .applying pressure upon the lever-handle d, so as to raise the valve Z2 and admit air to the suction-cup, thus equalizing air-pressure on the outer and inner surfaces of said cup, which will of course release it from enforced engagement with the tumor.

It will be noted that the improved pump may be constructed in very compact form, so as to be small and light. Furthermore, its novel construction adapts the instrument for general application to different parts of a person and permits its effective use for withdrawal of diseased blood from an ulcer or a surcharge of milk from the nipple of a diseased breast.

Having described my invention, I claim as new and desire to secure by Letters Patent 1. In a hand-pump, the combination with a barrel having a centrally-perforated end The i wall, a centrally-perforated removable cap on the other end of the barrel, a double-cup piston, a pistonrod thereon working respectively in the barrel and through the cap, and a handle on the outer end of the pistonrod, of a bulbous-sha ed valve-case having a central valve-cham er in one end, receiving the end of the barrel having the perforated end wall, an axially-perforated nipple extended from the opposite end of the valve-case, the passage through the nipple intersecting the valve-chamber, a springpressed valve having a fluted stem, the valve and its stem respectively working in the valve-chamber and passage in the nipple, a check-valve controlling a lateral passage leading from the valve-chamber out of the valve-case, and an elastic suction-cup mounted at one end on the nipple.

2. A suction and force pump, embodying a cylindrical barrel, a double-cupped piston, a rod extended from the piston and working througha cap on one end of the barrel, a valve-case-on the other end of the barrel, a nipple formed centrally on the case and having.A a perforation longitudinally therethrough, a valve in the case controlling the passage in the nipple, a lateral passage from the valvecase, a valve controlling said passage, the nipple having a lateral passage extended therefrom for induction of air thereinto, a relief-valve controlling said air-passage and manually operative from the exterior of the case, and a suction-cup mounted at one end on an end ofthe nipple.

In testimony whereof l have signed'my name to this specification in the presence of two subscribing Witnesses.

VILLIAM H. JORDAN.

Witnesses:

CHAs. W. MILLER, Jr., C. R. LINN. 

